— We did not see him at the lecture yesterday． — You _______ him, since I went to an international conference with him．
#87885
A
mustn’t have seen
B
can’t have seen
C
couldn’t see
D
needn’t have seen
推荐题目
．—What’s the matter with the man hanging his head there? —Well, if you _______ know, he was caught stealing my bike.
#88321
A
must
B
may
C
can
D
shall
(2013·浙江高考)Eye doctors recommend that a child's first eye exam ________ at the age of six months old.
#86525
A
was
B
be
C
were
D
is
My aunt _____ here by now, for she took the early bus.
#90176
A
must arrive
B
can arrive
C
may arrive
D
ought to have arrived
No reader ________ take away a book from the library without the permission of the librarian.
#88319
A
need
B
might
C
shall
D
will